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Finding the Fourth Proportional to 417,783.94, 626,668.94 and 133,472.46

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Solution

The fourth proportional to 417,783.94, 626,668.94 and 133,472.46 is: 200,206.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,783.94 : 626,668.94 = 133,472.46 : x
  2. Step 2: Convert to fraction form
    417,783.94/626,668.94 = 133,472.46/x
  3. Step 3: Cross multiply
    417,783.94x = 626,668.94 × 133,472.46
  4. Step 4: Simplify right side
    417,783.94x = 83,643,045,027.39
  5. Step 5: Solve for x
    x = 83,643,045,027.39/417,783.94
  6. Step 6: Final answer
    x = 200,206.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.